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(A) : Cellulose acetate and cellulose ni...

(A) : Cellulose acetate and cellulose nitrate are used in textiles because
(R) : Cellulose acetate and cellulose nitrate are fibres

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-POLYMERS-Level - I (Exercise - II) (Assertion (A) & Reason (R) type questions)
  1. (A) : The gross mobility of elastomer chain is its special characteris...

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  2. (A) : Natural rubber is an addition polymer. (R) : Natural rubber ha...

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  3. (A) : Natural rubber is elastic and non-cryslalline. (R) : Weak vand...

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  4. (A) Polypropylene is an addition polymer (R) : Polypropylene is poly...

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  5. (A) : Polybutadiene is an example of chain growth polymer (R) : In c...

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  6. (A) The polymerization of propylene is carried out in presence of SnCl...

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  7. (A) : Most of the polymeric materials are non biodegradable (R) : Bu...

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  8. (A) : Cellulose acetate and cellulose nitrate are used in textiles bec...

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  9. (A) : Styrene is more reactive than propene towards cationic polymeriz...

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  10. (A) : Bakelite is copolymer (R) : Bakelite is a thermosetting materi...

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  11. (A) : Glyptal is obtained by the condensation polymerization of ethyle...

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  12. (A) : Novac is heated in presence of hexamethyl tetramine to form hard...

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  13. (A) : Nylon 6,6 is a fibre. Because (R) : It is an addition polymer

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  14. (A) Nylon - 6,6 is classified as a condensation heteropolymer. (R) :...

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  15. (A) : Bakelite is thermosetting polymer. (R) : Bakelite has three di...

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  16. (A) : Natural rubber is a polymer of cis-isoprene (R) : Poly trans i...

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  17. (A) : The vulcanised rubber has greater elasticity and tensile strengt...

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  18. (A) : Addition of CH(3)COOH and HCOOH electrolytes causes coagulation ...

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  19. (A) : Osmotic pressure method is the most suitable method to determine...

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  20. (A) : Molecular mass of polymers is always expressed as an average (...

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